(West) Map Of Upper California By The U.S. Ex. Ex. And Best Authorities 1849. Wilkes, 1849 Spanning from the western edge of the Rockies to the West coast, here Wilkes depiction of the major drainages, terrain and even some towns and placenames. A crisp image of the still very young U.S. West. Condition is very good. Image size is approximately 8.5 x 11.75 (inches)